SimpleDataLayer.UpdateSchema(Boolean, XPClassInfo[]) Method

Updates a data store’s schema according to the specified class descriptions.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v24.1.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

NuGet Package: DevExpress.Xpo

Declaration

C#

public override UpdateSchemaResult UpdateSchema(
    bool doNotCreate,
    params XPClassInfo[] types
)

VB.NET

Public Overrides Function UpdateSchema(
    doNotCreate As Boolean,
    ParamArray types As XPClassInfo()
) As UpdateSchemaResult

Parameters

Name	Type	Description
doNotCreate	Boolean	true if the schema should not be created when the table that corresponds to the first item in the types array doesn’t exist in the storage.
types	XPClassInfo[]	An array of XPClassInfo objects that specify object metadata for which the schema should be created in the data store.

Returns

Type	Description
UpdateSchemaResult	A UpdateSchemaResult value that specifies the result of the update operation.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the UpdateSchema(Boolean, XPClassInfo[]) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XPO_how-to-import-a-large-data-set-using-xpo-efficiently-within-a-transaction-t333879/CS/XpoImport/Program.cs#L43

((IDataLayerForTests)dal).ClearDatabase();
dal.UpdateSchema(false, classes);
return dal;

VB.NET

XPO_how-to-import-a-large-data-set-using-xpo-efficiently-within-a-transaction-t333879/VB/XpoImport/Program.vb#L43

DirectCast(dal, IDataLayerForTests).ClearDatabase()
dal.UpdateSchema(False, classes)
Return dal

Implements

UpdateSchema(Boolean, XPClassInfo[])